Stamper



FIG. 1 is a perspective view of a stamper embodying my design;

FIG. 2 is a front elevational view of the stamper of FIG. 1;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a longitudinal enlarged cross-sectional view of the stamper taken along line 6--6 of FIG. 2; and,

FIG. 7 is an enlarged cross-sectional view of the stamper taken along line 7--7 of FIG. 3. 

The ornamental design for a stamper, as shown and described. 